def glob_pattern
“{app,lib,config,locale}/**/*.{rb,erb,haml,slim,rhtml}”
end
end

Hence, the task looks in the gem root and, as before, Rails.root for
files to translate.

My question: Is there a way to find .po files in both places? I am OK
with .mo files being stored in Rails.root/locales. (The .mo files can
then be checked into the repo for the app without affecting the gem
repo.)
But I would like a way for the .po files of the gem to override any.po
files in the app.